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US Patent: 480,666
Adjustable bit holder
Patentee:
George W. Louden (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
254/1

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Aug. 09, 1892

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
Probably for major machinery

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